dotamasta

You can def do the exam in Dec. Plenty of time.

For the probability stuff, don't get hung up on it. The Qbank is good but I think some the questions I recall from it were more crunch intensive than the exam, but if you know the theory its still great practice.

While you might be able to skirt through a solid foundation on these subjects will really help you in other areas going forward that can tie back into the prob and stat on a whim.

try picking up a cartoon guide to probability and statistics.

Also. My personal tip for bayes theorem is to always draw decision trees.